126804207529 has 16 divisors (see below), whose sum is σ = 129520107520. Its totient is φ = 124117615440.

The previous prime is 126804207511. The next prime is 126804207583. The reversal of 126804207529 is 925702408621.

It is a cyclic number.

It is not a de Polignac number, because 126804207529 - 2¹³ = 126804199337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126804207589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15476824 + ... + 15485014.

It is an arithmetic number, because the mean of its divisors is an integer number (8095006720).

Almost surely, 2^126804207529 is an apocalyptic number.

It is an amenable number.

126804207529 is a deficient number, since it is larger than the sum of its proper divisors (2715899991).

126804207529 is a wasteful number, since it uses less digits than its factorization.

126804207529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9940.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 126804207529 in words is "one hundred twenty-six billion, eight hundred four million, two hundred seven thousand, five hundred twenty-nine".